Enphase
Intermittent Thermal or Current Limiting Shutdown
Charger starts charging but stops after a few minutes without any error code; user must unplug and replug to resume.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Marginal overtemperature not reaching alarm threshold, Loose internal power connection heating under load, Weak breaker or undersized wiring causing voltage drop, Failing power module
How to Fix / Troubleshooting
Fire risk: Intermittent shutdowns under load can indicate overheating. Do not ignore repeated events.
- Feel for heat: During charging, carefully feel (without opening) the charger housing, cable, and breaker front. They should be warm at most, not too hot to touch.
- Check breaker and wiring size: Confirm the circuit breaker and wire gauge match the charger's maximum current rating per Enphase installation guide.
- Reduce current: Temporarily lower the maximum current in the Enphase app and see if charging becomes stable.
- Inspect for loose connections (electrician): Have an electrician check torque on all lugs in the panel and charger.
- If behavior persists at reduced current: The internal power module may be failing and should be replaced by a technician.
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Repair Difficulty
Hard
4/5
Required Part
Enphase EV Charger Power Module and Line Connections
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